obama said the administration will recognize a calition o syrian opposition groups. online, we look at a truly long- term reporting assignment. hari sreenivasan has more. >> sreenivasan: paul salopek is about to spend seven years tracing the ancient path of human migration around the globe. we talked about his route, the shoes he'll wear, and his emphasis on "slow journalism." and what's it like to have breast cancer in the poorest nation in the western hemisphere? that's next from our series with "pri's the world" on cancer in the developing world. all that and more is on our web site, newshour.pbs.org. ray? >> suarez: and that's the newshour for tonight. on wednesday, we'll look at the world in the year 2030. one intelligence report projects china will be on top economically, and the u.s. will be energy-independent. i'm ray suarez. >> woodruff: and i'm judy woodruff. we'll see you online, and again here tomorrow evening. thank you, and good night. major funding for the pbs newshour has been provided by: >> bnsf railway. and by the alfred p. oan foundation. supporti